Embiotocidae
The surfperches are a family of viviparous ray-finned fishes, the Embiotocidae. Most species are marine, inhabiting coastal waters from Baja California to Alaska, with a few found in Asian Pacific coasts. The only freshwater species, the tule perch, is endemic to California, United States.

Chad King / NOAA MBNMS · Public Domain · via Wikipedia/Commons. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.
On record
Recorded, not inferred- Sits inside
- OvalentariaPBDB
- Motility
- actively mobilePBDB, for Osteichthyes
Time the record covers
At least 33 million years on record.
The record covers at least 33.9 Mya to 11.7 ka. No occurrence read is dated outside 56 Mya to 0 Mya.
33 occurrences of Embiotocidae on record, most of them in the Pleistocene. The Paleobiology Database records this as a living group. Bar height is expected occurrences, not a count: each fossil is spread across the span it is dated to, so a tall narrow bar means tight dating and a low wide one means loose.
When
33 occurrences- Eocene3%
- Miocene11%
- Pliocene6%
- Pleistocene65%
- Holocene15%
These are dates about fossils, not the animal: the record can only begin after it arose and end before it died out, so either end may reach further. Shares are expected occurrences: a fossil dated to a span is counted partly in each period it straddles. More on what this infers.
Found in
9 formations
- Palos Verdes Sand Formation11
- Monterey Formation2
- Port Orford Formation2
- San Pedro Formation2
- Timms Point Silt Formation2
- Jewett Formation1
Loading coastlines…
The named rock units Embiotocidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 10 occurrences have no formation on record, which is common for older literature.
Embiotocidae and its relatives
PleistoceneWhere Embiotocidae and its relatives were recorded in the Pleistocene.
Found in the same rock
831 taxa- Cymatogaster aggregata13 sites
- Genyonemus lineatus12 sites
- Seriphus politus12 sites
- Porichthys notatus11 sites
- Galeorhinus galeus10 sites
- Myliobatis californica10 sites
- Raja10 sites
- Citharichthys sordidus9 sites
- Engraulis mordax9 sites
- Merluccius productus9 sites
- Squatina californica9 sites
- Carcharodon carcharias8 sites
- Citharichthys stigmaeus8 sites
- Isurus oxyrinchus8 sites
- Triakis semifasciata8 sites
- Carcharhinus7 sites
- Chilara taylori7 sites
- Leptocottus armatus7 sites
- Microgadus proximus7 sites
- Rhacochilus vacca7 sites
- Semicossyphus pulcher7 sites
- Citharichthys6 sites
- Glyptocephalus zachirus6 sites
- Paralichthys californicus6 sites
The Paleobiology Database records 20 sites for Embiotocidae, and this reads all of them. The number is how many of those sites it was catalogued from too. The 24 sharing the most are listed.
This is not a list of everything alive at the time. It is only what has come out of the same ground as this animal and been written down.
Entered from
16 references- Fish remains, mostly otoliths and teeth, from the Palos Verdes Sand (Late Pleistocene) of California11
- Otoliths and other fish remains from the Chumash Midden at Rincon Point (SBa-1) Santa Barbara-Ventura counties, California4
- The Marine Fish Fauna of the Middle Pleistocene Port Orford Formation2
- Preliminary List of the Marine Fishes and Other Vertebrate Remains from the Late Pleistocene Palos Verdes Sand Formation at Costa Mesa, Orange County, California2
- Otoliths and other fish remains from the Timms Point Silt (Early Pleistocene) at San Pedro, California2
- The marine fish fauna, based primarily on otoliths, of a Lower Pleistocene deposit at San Pedro, California (LACMIP 332, San Pedro Sand)2
- Investigations at an eroded shell midden reveal direct evidence for fur seal hunting and diverse subsistence strategies on Late Holocene Santa Rosa (Wima) Island, California1
- Geology and Paleontology of the Late Miocene Wilson Grove Formation at Bloomfield Quarry, Sonoma County, California1
- Marine studies of San Pedro Bay, California1
- The Enaliarctinae: A new group of extinct aquatic carnivora and a consideration of the origin of the otariidae1
- Les otolithes du calcaire grossier a fercourt (Eocene du bassin du Paris)1
- A Late Pliocene macrofossil fauna of Newport Beach, Orange County, California1
Each of the 33 occurrences read was entered from one of these publications, ordered by how many each accounts for. This is not a search for papers mentioning the name. 4 further references are not listed. Entries link to doi.org where the Paleobiology Database holds an identifier, and to its own record where it does not. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content1
Picture of Embiotocidae
- Source
- Wikipedia/Commons
- Credit
- Chad King / NOAA MBNMS
- Licence
- Public Domain
- Commercial use
- the licence allows it
No 3D scan of Embiotocidae was found in MorphoSource and Sketchfab.
Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.
The description on this site
- Source
- Wikipedia, “Surfperch”
- Licence
- CC BY-SA 4.0
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itOvalentaria through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Agassiz 1853